All 3 equations the Answer is v= 13/2
        
             
        
        
        
Answer:
vertex = (- 10, - 10 )
Step-by-step explanation:
The equation of a quadratic in vertex form is
y = a(x - h)² + k
where (h, k ) are the coordinates of the vertex and a is a multiplier
To obtain this form use the method of completing the square.
Given
h(x) = x² + 20x + 90 
add/subtract ( half the coefficient of the x- term )²
h(x) = x² + 2(10)x + 100 - 100 + 90
       = (x + 10)² - 10 ← in vertex form
with (h, k ) = (- 10, - 10 )
 
        
             
        
        
        
Answer:
110
Step-by-step explanation:
10 x 11 = 110
lmao thank you sooo much for da pointsssss
 
        
                    
             
        
        
        
Answer:
4.5 miles per hour is her rate in miles per hour 
Step-by-step explanation:
We want to convert 20 ft per second to miles per hour
If she jogs 20 ft in 3 seconds , then in one second , she will jog 20/3 ft 
So convert 20/3 ft/second to miles per hour 
Mathematically;
1 mile = 5280 feet 
So one feet = 1/5280 mile 
1 hour = 3600 seconds 
1 second = 1/3600 hour 
So, to go from miles/hour to ft/second ; we shall multiply by 1/5280 and divide by 1/3600
Hence; we have;
(20/3 * 1/5280)/1/3600
= 20/3 * 1/5280 * 3600/1
= 4.4545 which is 4.5 miles per hour 
 
        
             
        
        
        
Answer:
Consider matrix A. 
What is the inverse of A? Fill in the missing elements in the matrixs.
Step-by-step explanation:
Consider matrix A. 
What is the inverse of A? Fill in the missing elements in the matrixs.